Interesting. I had no doubt that you could answer my question. My dog is pleased!Yes. It has to do with Sirius the star and ancient Egyptian astronomers . Where the star was located.
The astronomer/priests observed that Sirius rose with the Sun just prior to the annual flooding of the Nile. The appearance of a celestial object at sunrise is known as a heliacel rising. If you can see Sirius from behind the glare of the Sun, you know that the tears of isis are on their way on.As life-giving flood waters.
Although I’m all for the hot dogs on the grill thing.